Home / 27,817.10-38,387.49-15,880.18

Finding the Fourth Proportional to 27,817.10, 38,387.49 and 15,880.18

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Solution

The fourth proportional to 27,817.10, 38,387.49 and 15,880.18 is: 21,914.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,817.10 : 38,387.49 = 15,880.18 : x
  2. Step 2: Convert to fraction form
    27,817.10/38,387.49 = 15,880.18/x
  3. Step 3: Cross multiply
    27,817.10x = 38,387.49 × 15,880.18
  4. Step 4: Simplify right side
    27,817.10x = 609,600,335.86
  5. Step 5: Solve for x
    x = 609,600,335.86/27,817.10
  6. Step 6: Final answer
    x = 21,914.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.